Climate ▸Forecast ▸December ▸January ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Saint John Weather in December

In Saint John, December brings low daytime temperatures around 3°C (37°F), with nights cooling to -5°C (23°F). It is the wettest month of the year, so expect more snow/rainfall than usual.

Rainfall in Saint John in December

Given that this is the rainiest month, it's wise to carry an umbrella to stay dry during unexpected showers. The climate data from previous years indicates about 15 days of snow/rain, averaging 140 mm (5.5 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Saint John in December

Expect highs of 3°C (37°F) in Saint John in December, with nights dropping to around -5°C (23°F). December is part of winter. Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. With overnight lows of -5°C (23°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. Prepare for low temperatures this month by wearing plenty of layers. It's essential to stay warm in such cold conditions.

December in Saint John can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Canada, check out our Saint John's climate page.

Saint John Temperature in December

Min TemperatureMin Temperature -5°C (23°F)  
Max TemperatureMax Temperature 3°C (37°F)  
Chance of RainChance of Rain 49%  
PrecipitationPrecipitation 140 mm (5.5 in)  
Rainy daysRainy days 15 days  

Best Places in Canada in December

Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in December →

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Saint John in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Saint John in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling
3/10
Walking
3/10
Barbeque
1/10
Camping
1/10
Outdoor sports
3/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Canada, check out our Saint John's climate page.

More climate data for Saint John